Do not discard unsaved changes when you click X in save dialog

[zeusongit]

Purpose

Do not discard unsaved changes when you click X in save dialog
Also, removed the extra add group to group analytics point

Declarations

Check these if you believe they are true

• The codebase is in a better state after this PR
• Is documented according to the standards
• The level of testing this PR includes is appropriate
• User facing strings, if any, are extracted into *.resx files
• All tests pass using the self-service CI.
• Snapshot of UI changes, if any.
• Changes to the API follow Semantic Versioning and are documented in the API Changes document.
• This PR modifies some build requirements and the readme is updated

Release Notes

• Do not discard unsaved changes when you click X in save dialog

Reviewers

@QilongTang

[QilongTang]

Would you also attach a gif of behavior change (although back to expected)?